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      저자 : Mohamad Hadi Dehghani (검색결과 1 건)
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        Removal of phosphate from aqueous solutions by iron nano-particle resin Lewatit (FO36)

        Lida Rafati,Amir Hossein Mahvi,Ramin Nabizadeh,Mohamad Hadi Dehghani 한국화학공학회 2012 Korean Journal of Chemical Engineering Vol.29 No.4

        Lewatit FO36 resin was covered with Fe (III) nano-particles, and it was used as a new way to eliminate phosphate. Column experiments were carried out in 11 stages in fixed bed columns with constant flow rate of 9 ml/min and the empty bed contact time (EBCT) of 2.1min. The adsorption capacity was calculated for different concentration of phosphate solutions. After resin was regenerated by using NaOH and NaCl solutions, the adsorption capacity of resin was computed for 6mg/L of phosphate, typically. The adsorption capacity of resin was checked again a typical concentration of phosphate. The adsorption capacity measurements of regenerated resin show that the concentration of phosphate reached to 1.6mg/g after an 8.5% decrease when the initial concentration of phosphate is 6 mg/L. Competition of anions with phosphate was analyzed using chloride, sulfate, bicarbonate and a combination of these anions. Finally the effect of resin in phosphate removal was studied for a typical real sample, and the data was analyzed using statistical software (SPSS 13). The statistical results indicated that Cl−, SO43−, HCO3− and combined competing anions did not have a strong influence on the phosphate removal efficiency.

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